.banner {
    width: 100%;
    min-width: 1152px;
    position: relative;
    overflow: hidden;
  }
  
  .banner .center-wrap {
    position: absolute;
    top: 0;
    left: 50%;
    width: 1152px;
    margin-left: -576px;
  }
  
  .banner .center-wrap .v-menu-box {
    position: absolute;
    left: 0;
    top: 0;
    width: 296px;
    height: 100%;
  }
  